Show-globe



(No Model.) y

0. BERGER '8v E. ELDRIDGB.

SHOW GLOBE. No. 465,516. Patented Deo. 22, 1.891.

Y UNrrn Sterns ATENT OFFICE.

OTTO BERGER AND HILLIARY ELDRIDGE, OF GALVESTON, TEXAS.

SHOW-GLOBE.

SPECIFICATION forming part of Letters Patent No. 465,516, dated December 22, 1891.

Application tiled August 4, 1891. Serial No. 401,629. (No model.)

To all whom t may concern:

States, residing at Galveston, in the county 'flat bottom 2.

of Galveston and State of Texas, have invented a new and useful Show-Globe, of which the following is a specification.

This invention relates to improvements in illuminating and other globes; and the objects in View are to provide a globe adapted to serve simply for the purpose of illumination and furnishingapure white bright light for general purposes, or to serve as an illuminated show-globe for druggists.

A further object bf the invention is to adapt the globe to receive a liquid, either colorless or colored, and to receive an illuminating medium that may shine through and be intensified by the liquid and the walls of the globe,

`which latter act as lenses.

Other objects and advantages of the invention will appear in the following description, and the novel features thereot` will be particularly pointed out in the claims.

Vlongitudinal section. Fig. 3 is a detail in plan of the inner vessel or tube.

Fig. 4 is a similar view of the cover, the same bei-ng inverted.

Like numerals of reference indicate like parts in all the figures of the drawings.

In practicing our invention we construct a hollow globe l of glass and provide the internal cavity or chamber of the same with a Oast with the globe or otherwise secured thereto is a suitable stand or base 3, which supports the globe in proper position. be omitted, and in lieu of the 'same other means of support employed-as, for instance, suitable suspension devices commonly einployed for supporting globes ot' this character. The globe is provided at its top with a circular opening 4, and at diametrically-opp'osite sides lugs 5 extend inwardly from the openings.

6 denotes a tube concaved between its uplf desired, the stand or base may per and lower ends and internally bored or hollow. The base of the tube and also'its upper end are circular and of a diameter adapting them to passl through lthe opening 4 of the globe into the interior thereof, said base resting upon the iat bottom 2 Within the globe. The top of the tube 6 at diametrically-opposite sides has notches 7, which permit the tube to pass the lugs 5 of the globe, which lugs serve to lock the tube within the globo vand against displacement, when said tube is partially rotated, after having been inserted, whereby its notches 7 are disposed out of alignment or register with the lugs. On the other hand, by rotating the tube so that its notches align with the lugs said tube may be readily removed from the globe. The tube is slightly shorter than the depth of the globe from the opening to the flat bottom, so thatwhen in position Within the globe the upper end of the tube is slightly below the edge of the opening, whereby the'edge of the opening forms an annular rim surrounding the upper end of the tube. The tube is also provided with a shallow bead orflange located Within the inner edges of its notches and extending parallel to its periphery. This flange or bead 8 combines with the edge of the opening 4 of the globe to form an annular' recess, for a purpose hereinafter apparent.

9 designates the removable cover,which consists of the knob 10, located upon the upper side of the concavo-convexed cover. or base portion ll. The exterior of the base 1s so formed as to constitute a continuation of the exterior of the globe when the cover is in potion, and the base is of such diameter as to adapt it to tit within the edge of the opening 4 ot the globe and also outside of the bead 8 of the tube 6, upon which latter the outer annular edge of the cover rests. Upon its under-,side the cover is provided with diametriy cally-opposite notches 12, which receive the lugs 5, and thereby the cover 1s prevented from undue looseness or rotation. The cover 8 of the tube.

with a central opening 14, extending from the top through the base of the same and communicating with the upper open end of the tube, it being understood that the lower end of said tube is closed, as shown.

lIn practice a sufficient quantity of liquid, either plain (colorless) or colored, is poured into the globe l, after which, in the manner hereinbefore described, the tube is inserted bottom end first into the globe, anddisplacing the liquid the latter rises and ills the Y the same consisting of the globular vessel havspace between the globe and tube, so that the liquid is bounded at its outside by the convexed wall of the globe and upon its inside by the concaved wall of the cylinder, which, like the globe, is also formed of glass. Electric-light wires l5 are now passed through the opening 14 of the cover, and to the terminals of the same is attached a suspended incandescent-electric light 16, which, when the cover is in position upon the globe, will be supported within the cylinder 6. construction, if `the liquid be colored, as ernployed in show-globes of drug-stores, it will be seen that we provide a globe from which the colored light will be radiated in all directions, and thus we greatly improve and reduce the cost of maintenance of the old 'styleE Of show-globe, which consisted merely of af jar of colored liquid with a light placed behind it, and which therefore simply radiated colored light at points substantially diametri-` cally opposite thelighting medium. In such practice it is therefore necessary to employ two globes at least and also two lights, and even then the rays of light were directed only up and down the street or in two directions, one from ,each globe. XVe thus reduce the cost of maintenance by providing a globe adapted to deflect the rays in all directions and requiring but one globe and one light. Furthermore, thevconvexed lenses formed by the walls of the globe and the cylinder greatly itensify or increase the illuminating-power, so that it can be seen at longer distances.

By substituting colorless liquid for the colored liquid the globe may be adapted for general lighting purposes, the, operation bein g' exactly the same as heretofore described, and the only difference being in the character of the light furnished. Greater advantages arise by-thus illuminating an apartment, in that the rays of light are not only intensified through the doubly-convexed transparent walls ot' the globe and the tube and Lthe interposed liquid, but the same are more evenly distributed, dif- By this fused in all directions, and softened, whereby the glare so injurious to the eyes is avoided.

Having described our invention, what we claim isl. The herein-described illuminating-globe, the same consisting of the external globular Vessel having an opening for the reception of a lighting device and an internal concaved tube mounted in the globe, substantially as specified.

2. The herein-described illuminating-globe,

ing anopening at its top Vprovided with lugs located at the edges of the opening, and an inner tube mounted in the vessel and having an upper flared mouth, notched to receivethe lugs, said cylinder bei-ngshallower than the globe and therefore adapted to Yloe rotated .under the lugs, substantially as specified.

3. The he-rein-described'illuminating-globe, the same consisting of the spherical globular vessel having an opening, said vessel 'being provided with a suitable stand and below its open ing .with a iiat bottom, the inner vessel or tube mounted in the outer vessel, having a closed bottom and resting u pon-thelat bottom of the outer vessel, said inner vessel .having a iiared upper end and shallower than the outer vessel and provided Aupon its upper end or mouth with an annular bead, and the l.cover consisting of aknob and a circular yconvexed base, the two having an opening for the reception of electric-light wires, saidbase being adapted to fit between the beadot' the inner cylinder and the edge of the opening in the outercylinder and upon its under side .pro-

vided with an annular bead .adapted to fit f within the bead of the inner cylinder, sub- IOO 

